The search service can find package by either name (apache),
provides(webserver), absolute file names (/usr/bin/apache),
binaries (gprof) or shared libraries (libXm.so.2) in
standard path. It does not support multiple arguments yet...

The System and Arch are optional added filters, for example
System could be "redhat", "redhat-7.2", "mandrake" or "gnome",
Arch could be "i386" or "src", etc. depending on your system.

System
Arch

RPM resource ldirectord

The Linux Director Daemon (ldirectord) was written by Jacob Rief.
<jacob.rief@tiscover.com>
ldirectord is a stand alone daemon for monitoring the services on real
servers. Currently, HTTP, HTTPS, and FTP services are supported.
lditrecord is simple to install and works with the heartbeat code
(http://www.linux-ha.org/).
See 'ldirectord -h' and linux-ha/doc/ldirectord for more information.